Omron SYSMAC CS Series Operation Manual page 100

CS1W-PTR01 Power Transducer Input Unit
Item
Areas for data CIO Area words
exchange with allocated for
CPU Unit Special I/O
Units
DM Area words
allocated for
Special I/O
Units
Number of inputs
Input signal type
User-defined scaling in industrial
units
Data storage in the CIO Area
Accuracy
Temperature coefficient
Resolution
Input signal range
Input impedance
Response time
Conversion period
Maximum time to store data in
CPU Unit
Input error detection
Operation at input disconnection
Function Inrush input
limit
Process value
alarm
Mean value
processing
(input filter)
Isolation
Insulation resistance
Dielectric strength
External connections
Unit number settings
Indicators
Front panel connector
10 words/Unit
Power Transducer Input Unit to CPU Unit:
All process values, process value alarms (L, H)
100 words/Unit
CPU Unit to Power Transducer Input Unit:
Input signal type, scaling of process value in industrial units, process value alarm set-
ting (L, H), inrush input upper limit, inrush input upper limit time, zero/span adjustment
value, etc.
8
Either 0 to 1 mA or –1 to 1 mA.
Scaling required for the above input sig-
nals. (Any minimum and maximum values
can be set.) (8 inputs set separately.)
The value derived from carrying out the
following processing in order of the pro-
cess value data is stored in four digits
hexadecimal (binary values) in the allo-
cated words in the CIO Area.
1) Mean value processing → 2) Scaling →
3) Zero/span adjustment → 4) Inrush input
limit → 5) Output limits
±0.2% of full scale
±0.015%/°C of full scale
1/4,096 of full scale
For 0 to 1 mA: –15 to 115%; for –1 to 1 mA: –7.5 to 107.5%
100 Ω (typical)
1.2 s (travel time from input 0% to 90%, for step input)
200 ms/8 inputs
Conversion period + one CPU Unit cycle
None.
Process value corresponding to 0 mA stored.
When the process value is increased from 2% or less, the inrush input limit function
limits the increase for a set time. (It is available only for inputs of 0 to 1 mA.) This func-
tion can be used to prevent sudden process value increases due to inrush currents
caused by motor startup and so on.
Upper limit value: –32,000 to 32,000
Upper limit time: 0 to 100 s
Process value 2-point alarm (H, L), hysteresis, and ON-delay timer (0 to 60 s) are
available.
Calculates the moving average for the past four process values (every 200 ms), and
stores that value in the CIO Area as the process value.
Between inputs: No isolation
Between input terminals and PC signals: Isolation by transformer and photocoupler
20 MΩ (at 500 V DC) between inputs
Between inputs: 1,000 V AC, at 50/60 Hz, for 1 min, leakage current 10 mA max.
Terminal block (detachable)
Set by rotary switches on front panel, from 0 to 95.
Three LED indicators on front panel (for normal operation, errors detected at the
Power Transducer Input Unit, and errors related to the CPU Unit).
Sensor input connector terminal block (detachable)
Specifications
Input signal type and scaling to industrial
units are separate for each of the 8 inputs.
Note Input signal type and scaling to
industrial units are set in the DM
Area.
Example:
Input signal type: 0 to 1 mA from power
transducer; industrial unit scaling: 0 to
500 W. DM Area settings are as follows:
Input signal type: 0 (0000 Hex)
Industrial unit maximum value stored: 500
(01F4 Hex)
Industrial unit minimum value stored:
0 (0000 Hex)
Section 2-6
87